these 4 derivations will be built:
  /nix/store/f2v2b4ffqc3zmw02fml95l3mwx55b2gy-iets-0.1.0.drv
  /nix/store/fqifi124gcd3hbvgmhxyj6c0qbgk36gn-iets-fuzz-diff-0.0.0.drv
  /nix/store/b6azcx01wbrwffd9174fwm3lsh4m42a5-iets-conformance-adapter.drv
  /nix/store/yk9daian5vhpyyvjsk5cn2mwjg13mlvx-nix-conformance-iets.drv